Habibah, Amman, Jordan: For the city’s best knafeh, follow the queue down an alleyway near downtown’s Arab Bank. The generous pockets of shredded phyllo and sweet cheese are crowned with local pistachios and syrup, and served piping hot.

Mr. Minsch, Berlin: The vibe is Mad Hatter meets 1950’s hausfrau at this Kreuzberg takeout bakery, where master pastry chef Andreas Minsch turns out his extravagant confections. You’ll be hard-pressed to choose between an enormous cinnamon roll or a slice of the popular Black Forest cherry cake. 49-30/2845-0894.

Cristalli di Zucchero, Rome: Adjacent to a farmers’ market just off the Circus Maximus is a pretty-in-pink pasticceria where Parisian-style tartlets are made with regional ingredients like apricots and pistachios. Order the flaky ricotta-and-chocolate-filled Romanella at the counter with an espresso—then get another one to go.

Ice Monster, Taipei: Ignore the candy-colored popsicles up front. What you want is the “mango avalanche”—shaved ice piled high with cubes of fresh fruit, mango pudding, condensed milk, and mango sorbet. It’s enough for four dainty eaters or two ravenous ones.

Xocolat, Vienna: Even the most jaded epicurean succumbs to the Willy Wonkaesque sense of wonder at this haven for the cocoa-obsessed. Lose yourself amid the shelves of chocolate bars, truffles, and pralines—some house-made, some globally sourced—then sign up for a class in creating your own.